US 12,228,015 B2
Adjustable brush plug device
Ahmed A. Al-Mousa, Doha (SA); Marius Neacsu, Dhahran (SA); and Omar M. Alhamid, Dhahran (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Oct. 27, 2022, as Appl. No. 18/050,390.
Prior Publication US 2024/0141755 A1, May 2, 2024
Int. Cl. E21B 37/00 (2006.01); E21B 31/00 (2006.01)
CPC E21B 37/00 (2013.01) [E21B 31/00 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A device for cleaning a tubular of a wellbore, the device comprising:
a cylindrical body comprising:
a fishing neck that is configured to facilitate raising and lowering the device within the tubular;
an upper chamber that receives a latching dog that is configured to abut against the tubular when the device is raised and lowered within the tubular;
a first spring configured to exert a first force between the latching dog and the cylindrical body;
a lower chamber that receives a brush comprising a plurality of bristles fixed thereto that are configured to scour a surface of the tubular as the device is lowered;
a second spring configured to exert a second force between the brush and the cylindrical body;
a rod that interconnects the latching dog and the brush such that the rod forces the brush to withdraw into the cylindrical body when the latching dog actuates away from the cylindrical body, and
a pivot connection configured to connect the rod to the cylindrical body,
wherein the rod is configured to freely rotate about the pivot connection.